Everyone has an opinion, well now Opinion Plus will convert your opinion into cash in your pocket thanks to its intuitive and easy to use paid survey site. It scores highly because the surveys are tailored to each individual user, and yet they still send regular invites so you won’t be waiting around for something to do or, even worse, filling in surveys that you aren’t eligible for and won’t get paid for. They send payments via PayPal only, but their payout rate is among the best that we’ve seen.
The only problem with rewarding consumers for taking online surveys is that it gives them the incentive to cheat. The more surveys you fill out, the more points you get. So people get creative: They randomly answer survey questions as quickly as possible, establish multiple e-mail addresses to answer the same survey five or six times, or lie about their demographic (a white male says he's a black female, for example) to participate in surveys for which they otherwise wouldn't qualify [source: Frost & Sullivan].
Unlike some of the other sites, with Inbox Dollar, you essentially sign up to take advantage of whatever Inbox Dollar makes from their advertisers. They will send you emails which they get paid per receipt of you reading them or clicking a link. In turn, they give you a cut. Not to ruin your day but it's a rather small cut. The links that end up paying out the most usually have some stipulations attached – such as signing up for a service. This can end up being a lot more hassle than its worth and we recommend you pay VERY close attention to the stipulations.
**NO PURCHASE NECESSARY. Open to legal residents of the 50 United States (D.C.) who are eligible to participate on a Survey Sampling International Panel and meet the minimum age requirement for the respective Panel. Quarterly drawings; enter by December 31, 2016 to be included in next drawing. To enter and for Official Rules, including odds, mail-in method of entry, and prize descriptions, visit here. Void where prohibited.
Its free to use, no subscription required, you can create as many surveys and collect as many responses as you want, There are no restrictions on making surveys. If you want to view all responses it's free, no upgrades to paid plans are required. However, if you are just starting out or need only a small poll or survey, eSurv is exactly what youre looking for to make your first survey.
OneOpinion. This site is a survey aggregator with an effective screening process. Its dashboard is informative and displays helpful sections, such as your activity and a customer support form. The site was above average at picking surveys we qualified for. As for the points awarded per survey, 500 or 1,000 points may look high at first, but when converted to actual rewards, you’d get 50 cents or a dollar. Also, you can’t cash out until you reach 25,000 points, equivalent to $25. Read more in our OneOpinion review.
I don’t see PaidViewpoint on your list. I like using that site. I signed up for it on June 28, 2016, but I guess I forgot about the site and stopped using it on July 24, 2016 but had a total of $1.91. I started using it again on May 5, 2018, and I’m now up to $27.05 and have a trait score of 10, which is the highest. The surveys are easy and you don’t get disqualified. I mostly earn 10 cents, but once in awhile I earn some good money like 62 cents. It does take awhile to add up, but it’s free money.

Select a representative sample: Selecting a representative sample from your sampling frame is also important for collecting valid and reliable data about the population of interest. For example, if you are sampling from a large database of customer email addresses and only wanted one response per household, you might want to cross-check each email address against mailing addresses and remove duplicates to avoid some households having a greater probability of selection. Then you would likely draw a random sample from the remaining list of email addresses.

Define the research question: This is critically important to the success of a survey research project. Without a clearly defined question, it is difficult to determine the best approach for conducting the survey. For example, based on the research question, are the needed data exploratory, descriptive, or causal? The answer to this basic question has huge implications for the entire research process, yet it is often not directly addressed.